fix image search expand box, cut-off of 2nd capture line height

tested with IE11 and Firefox 32 (change worked for both to show 2nd line without cutting off height)

+fix charset parameter in metadataImageParser
+update start errMsgTxt to "java 1.7"

htroot/js/highslide/highslide.js

@@ -2,7 +2,7 @@
 Name:    Highslide JS
 Version: 3.3.9 (February 15 2008)
 Config:  default
-Author:  Torstein Hønsi
+Author:  Torstein H<EFBFBD>nsi
 Support: http://vikjavev.no/highslide/forum
 
 Licence:
@@ -1197,7 +1197,7 @@ writeCaption : function() {
 				null, null, true); // to get height
 			this.caption.innerHTML = '';
 			this.caption.appendChild(temp);	
-			height = this.caption.childNodes[0].offsetHeight;
+			height = this.caption.offsetHeight;
 			this.caption.innerHTML = this.caption.childNodes[0].innerHTML;
 		}
 		hs.setStyles(this.caption, { overflow: 'hidden', height: 0, zIndex: 2, marginTop: 0 });

source/net/yacy/document/parser/images/metadataImageParser.java

@@ -157,7 +157,7 @@ public class metadataImageParser extends AbstractParser implements Parser {
         return new Document[]{new Document(
             location,
             mimeType,
-            "UTF-8",
+            documentCharset,
             this,
             new HashSet<String>(0), // languages
             keywords == null ? new String[]{} : keywords.split(keywords.indexOf(',') > 0 ? "," : " "), // keywords

source/net/yacy/yacy.java

@@ -136,7 +136,7 @@ public final class yacy {
             try {
                 "a".isEmpty(); // needs at least Java 1.6
             } catch (final NoSuchMethodError e) {
-                System.err.println("STARTUP: Java Version too low. You need at least Java 1.6 to run YaCy");
+                System.err.println("STARTUP: Java Version too low. You need at least Java 1.7 to run YaCy");
                 System.exit(-1);
             }